files/directory.c

   1 /*
   2  * DOS directories functions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #include <ctype.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12 #include <unistd.h>
  13 #include <errno.h>
  14 #include <sys/errno.h>
  15
  16 #include "winbase.h"
  17 #include "wine/winbase16.h"
  18 #include "wine/winestring.h"
  19 #include "winerror.h"
  20 #include "process.h"
  21 #include "drive.h"
  22 #include "file.h"
  23 #include "heap.h"
  24 #include "msdos.h"
  25 #include "options.h"
  26 #include "debug.h"
  27
  28 static DOS_FULL_NAME DIR_Windows;
  29 static DOS_FULL_NAME DIR_System;
  30
  31
  32 /***********************************************************************
  33  *           DIR_GetPath
  34  *
  35  * Get a path name from the wine.ini file and make sure it is valid.
  36  */
  37 static int DIR_GetPath( const char *keyname, const char *defval,
  38                         DOS_FULL_NAME *full_name )
  39 {
  40     char path[MAX_PATHNAME_LEN];
  41     BY_HANDLE_FILE_INFORMATION info;
  42
  43     PROFILE_GetWineIniString( "wine", keyname, defval, path, sizeof(path) );
  44     if (!DOSFS_GetFullName( path, TRUE, full_name ) ||
  45         !FILE_Stat( full_name->long_name, &info ) ||
  46         !(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
  47     {
  48         MSG("Invalid path '%s' for %s directory\n", path, keyname);
  49         return 0;
  50     }
  51     return 1;
  52 }
  53
  54
  55 /***********************************************************************
  56  *           DIR_Init
  57  */
  58 int DIR_Init(void)
  59 {
  60     char path[MAX_PATHNAME_LEN];
  61     DOS_FULL_NAME tmp_dir;
  62     int drive;
  63     const char *cwd;
  64
  65     if (!getcwd( path, MAX_PATHNAME_LEN ))
  66     {
  67         perror( "Could not get current directory" );
  68         return 0;
  69     }
  70     cwd = path;
  71     if ((drive = DRIVE_FindDriveRoot( &cwd )) == -1)
  72     {
  73         MSG("Warning: could not find DOS drive for cwd %s; "
  74             "starting in windows directory.\n", cwd );
  75     }
  76     else
  77     {
  78         DRIVE_SetCurrentDrive( drive );
  79         DRIVE_Chdir( drive, cwd );
  80     }
  81
  82     if (!(DIR_GetPath( "windows", "c:\\windows", &DIR_Windows )) ||
  83         !(DIR_GetPath( "system", "c:\\windows\\system", &DIR_System )) ||
  84         !(DIR_GetPath( "temp", "c:\\windows", &tmp_dir )))
  85     {
  86         PROFILE_UsageWineIni();
  87         return 0;
  88     }
  89     if (-1 == access( tmp_dir.long_name, W_OK ))
  90     {
  91         if (errno==EACCES)
  92         {
  93                 MSG("Warning: The Temporary Directory (as specified in your configuration file) is NOT writeable.\n");
  94                 PROFILE_UsageWineIni();
  95         }
  96         else
  97                 MSG("Warning: Access to Temporary Directory failed (%s).\n",
  98                     strerror(errno));
  99     }
 100
 101     if (drive == -1)
 102     {
 103         drive = DIR_Windows.drive;
 104         DRIVE_SetCurrentDrive( drive );
 105         DRIVE_Chdir( drive, DIR_Windows.short_name + 2 );
 106     }
 107
 108     PROFILE_GetWineIniString("wine", "path", "c:\\windows;c:\\windows\\system",
 109                              path, sizeof(path) );
 110
 111     /* Set the environment variables */
 112
 113     SetEnvironmentVariableA( "PATH", path );
 114     SetEnvironmentVariableA( "COMSPEC", "c:\\command.com" );
 115     SetEnvironmentVariableA( "TEMP", tmp_dir.short_name );
 116     SetEnvironmentVariableA( "windir", DIR_Windows.short_name );
 117     SetEnvironmentVariableA( "winsysdir", DIR_System.short_name );
 118
 119     TRACE(dosfs, "WindowsDir = %s (%s)\n",
 120           DIR_Windows.short_name, DIR_Windows.long_name );
 121     TRACE(dosfs, "SystemDir  = %s (%s)\n",
 122           DIR_System.short_name, DIR_System.long_name );
 123     TRACE(dosfs, "TempDir    = %s (%s)\n",
 124           tmp_dir.short_name, tmp_dir.long_name );
 125     TRACE(dosfs, "Path       = %s\n", path );
 126     TRACE(dosfs, "Cwd        = %c:\\%s\n",
 127           'A' + drive, DRIVE_GetDosCwd( drive ) );
 128
 129     return 1;
 130 }
 131
 132
 133 /***********************************************************************
 134  *           GetTempPath32A   (KERNEL32.292)
 135  */
 136 UINT WINAPI GetTempPathA( UINT count, LPSTR path )
 137 {
 138     UINT ret;
 139     if (!(ret = GetEnvironmentVariableA( "TMP", path, count )))
 140         if (!(ret = GetEnvironmentVariableA( "TEMP", path, count )))
 141             if (!(ret = GetCurrentDirectoryA( count, path )))
 142                 return 0;
 143     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 144     {
 145         path[ret++] = '\\';
 146         path[ret]   = '\0';
 147     }
 148     return ret;
 149 }
 150
 151
 152 /***********************************************************************
 153  *           GetTempPath32W   (KERNEL32.293)
 154  */
 155 UINT WINAPI GetTempPathW( UINT count, LPWSTR path )
 156 {
 157     static const WCHAR tmp[]  = { 'T', 'M', 'P', 0 };
 158     static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
 159     UINT ret;
 160     if (!(ret = GetEnvironmentVariableW( tmp, path, count )))
 161         if (!(ret = GetEnvironmentVariableW( temp, path, count )))
 162             if (!(ret = GetCurrentDirectoryW( count, path )))
 163                 return 0;
 164     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 165     {
 166         path[ret++] = '\\';
 167         path[ret]   = '\0';
 168     }
 169     return ret;
 170 }
 171
 172
 173 /***********************************************************************
 174  *           DIR_GetWindowsUnixDir
 175  */
 176 UINT DIR_GetWindowsUnixDir( LPSTR path, UINT count )
 177 {
 178     if (path) lstrcpynA( path, DIR_Windows.long_name, count );
 179     return strlen( DIR_Windows.long_name );
 180 }
 181
 182
 183 /***********************************************************************
 184  *           DIR_GetSystemUnixDir
 185  */
 186 UINT DIR_GetSystemUnixDir( LPSTR path, UINT count )
 187 {
 188     if (path) lstrcpynA( path, DIR_System.long_name, count );
 189     return strlen( DIR_System.long_name );
 190 }
 191
 192
 193 /***********************************************************************
 194  *           GetTempDrive   (KERNEL.92)
 195  */
 196 BYTE WINAPI GetTempDrive( BYTE ignored )
 197 {
 198     char *buffer;
 199     BYTE ret;
 200     UINT len = GetTempPathA( 0, NULL );
 201
 202     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len + 1 )) )
 203       return DRIVE_GetCurrentDrive() + 'A';
 204
 205     /* FIXME: apparently Windows does something with the ignored byte */
 206     if (!GetTempPathA( len, buffer )) buffer[0] = 'C';
 207     ret = buffer[0];
 208     HeapFree( GetProcessHeap(), 0, buffer );
 209     return toupper(ret);
 210 }
 211
 212
 213 UINT WINAPI WIN16_GetTempDrive( BYTE ignored )
 214 {
 215     /* A closer look at krnl386.exe shows what the SDK doesn't mention:
 216      *
 217      * returns:
 218      *   AL: driveletter
 219      *   AH: ':'                - yes, some kernel code even does stosw with
 220      *                            the returned AX.
 221      *   DX: 1 for success
 222      */
 223     return MAKELONG( GetTempDrive(ignored) | (':' << 8), 1 );
 224 }
 225
 226
 227 /***********************************************************************
 228  *           GetWindowsDirectory16   (KERNEL.134)
 229  */
 230 UINT16 WINAPI GetWindowsDirectory16( LPSTR path, UINT16 count )
 231 {
 232     return (UINT16)GetWindowsDirectoryA( path, count );
 233 }
 234
 235
 236 /***********************************************************************
 237  *           GetWindowsDirectory32A   (KERNEL32.311)
 238  */
 239 UINT WINAPI GetWindowsDirectoryA( LPSTR path, UINT count )
 240 {
 241     if (path) lstrcpynA( path, DIR_Windows.short_name, count );
 242     return strlen( DIR_Windows.short_name );
 243 }
 244
 245
 246 /***********************************************************************
 247  *           GetWindowsDirectory32W   (KERNEL32.312)
 248  */
 249 UINT WINAPI GetWindowsDirectoryW( LPWSTR path, UINT count )
 250 {
 251     if (path) lstrcpynAtoW( path, DIR_Windows.short_name, count );
 252     return strlen( DIR_Windows.short_name );
 253 }
 254
 255
 256 /***********************************************************************
 257  *           GetSystemDirectory16   (KERNEL.135)
 258  */
 259 UINT16 WINAPI GetSystemDirectory16( LPSTR path, UINT16 count )
 260 {
 261     return (UINT16)GetSystemDirectoryA( path, count );
 262 }
 263
 264
 265 /***********************************************************************
 266  *           GetSystemDirectory32A   (KERNEL32.282)
 267  */
 268 UINT WINAPI GetSystemDirectoryA( LPSTR path, UINT count )
 269 {
 270     if (path) lstrcpynA( path, DIR_System.short_name, count );
 271     return strlen( DIR_System.short_name );
 272 }
 273
 274
 275 /***********************************************************************
 276  *           GetSystemDirectory32W   (KERNEL32.283)
 277  */
 278 UINT WINAPI GetSystemDirectoryW( LPWSTR path, UINT count )
 279 {
 280     if (path) lstrcpynAtoW( path, DIR_System.short_name, count );
 281     return strlen( DIR_System.short_name );
 282 }
 283
 284
 285 /***********************************************************************
 286  *           CreateDirectory16   (KERNEL.144)
 287  */
 288 BOOL16 WINAPI CreateDirectory16( LPCSTR path, LPVOID dummy )
 289 {
 290     TRACE(file,"(%s,%p)\n", path, dummy );
 291     return (BOOL16)CreateDirectoryA( path, NULL );
 292 }
 293
 294
 295 /***********************************************************************
 296  *           CreateDirectory32A   (KERNEL32.39)
 297  */
 298 BOOL WINAPI CreateDirectoryA( LPCSTR path,
 299                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 300 {
 301     DOS_FULL_NAME full_name;
 302
 303     TRACE(file, "(%s,%p)\n", path, lpsecattribs );
 304     if (DOSFS_GetDevice( path ))
 305     {
 306         TRACE(file, "cannot use device '%s'!\n",path);
 307         SetLastError( ERROR_ACCESS_DENIED );
 308         return FALSE;
 309     }
 310     if (!DOSFS_GetFullName( path, FALSE, &full_name )) return 0;
 311     if ((mkdir( full_name.long_name, 0777 ) == -1) && (errno != EEXIST))
 312     {
 313       WARN (file, "Errno %i trying to create directory %s.\n", errno, full_name.long_name);
 314         FILE_SetDosError();
 315         return FALSE;
 316     }
 317     return TRUE;
 318 }
 319
 320
 321 /***********************************************************************
 322  *           CreateDirectory32W   (KERNEL32.42)
 323  */
 324 BOOL WINAPI CreateDirectoryW( LPCWSTR path,
 325                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 326 {
 327     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 328     BOOL ret = CreateDirectoryA( xpath, lpsecattribs );
 329     HeapFree( GetProcessHeap(), 0, xpath );
 330     return ret;
 331 }
 332
 333
 334 /***********************************************************************
 335  *           CreateDirectoryEx32A   (KERNEL32.40)
 336  */
 337 BOOL WINAPI CreateDirectoryExA( LPCSTR template, LPCSTR path,
 338                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 339 {
 340     return CreateDirectoryA(path,lpsecattribs);
 341 }
 342
 343
 344 /***********************************************************************
 345  *           CreateDirectoryEx32W   (KERNEL32.41)
 346  */
 347 BOOL WINAPI CreateDirectoryExW( LPCWSTR template, LPCWSTR path,
 348                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 349 {
 350     return CreateDirectoryW(path,lpsecattribs);
 351 }
 352
 353
 354 /***********************************************************************
 355  *           RemoveDirectory16   (KERNEL)
 356  */
 357 BOOL16 WINAPI RemoveDirectory16( LPCSTR path )
 358 {
 359     return (BOOL16)RemoveDirectoryA( path );
 360 }
 361
 362
 363 /***********************************************************************
 364  *           RemoveDirectory32A   (KERNEL32.437)
 365  */
 366 BOOL WINAPI RemoveDirectoryA( LPCSTR path )
 367 {
 368     DOS_FULL_NAME full_name;
 369
 370     TRACE(file, "'%s'\n", path );
 371
 372     if (DOSFS_GetDevice( path ))
 373     {
 374         TRACE(file, "cannot remove device '%s'!\n", path);
 375         SetLastError( ERROR_FILE_NOT_FOUND );
 376         return FALSE;
 377     }
 378     if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
 379     if (rmdir( full_name.long_name ) == -1)
 380     {
 381         FILE_SetDosError();
 382         return FALSE;
 383     }
 384     return TRUE;
 385 }
 386
 387
 388 /***********************************************************************
 389  *           RemoveDirectory32W   (KERNEL32.438)
 390  */
 391 BOOL WINAPI RemoveDirectoryW( LPCWSTR path )
 392 {
 393     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 394     BOOL ret = RemoveDirectoryA( xpath );
 395     HeapFree( GetProcessHeap(), 0, xpath );
 396     return ret;
 397 }
 398
 399
 400 /***********************************************************************
 401  *           DIR_TryPath
 402  *
 403  * Helper function for DIR_SearchPath.
 404  */
 405 static BOOL DIR_TryPath( const DOS_FULL_NAME *dir, LPCSTR name,
 406                            DOS_FULL_NAME *full_name )
 407 {
 408     LPSTR p_l = full_name->long_name + strlen(dir->long_name) + 1;
 409     LPSTR p_s = full_name->short_name + strlen(dir->short_name) + 1;
 410
 411     if ((p_s >= full_name->short_name + sizeof(full_name->short_name) - 14) ||
 412         (p_l >= full_name->long_name + sizeof(full_name->long_name) - 1))
 413     {
 414         SetLastError( ERROR_PATH_NOT_FOUND );
 415         return FALSE;
 416     }
 417     if (!DOSFS_FindUnixName( dir->long_name, name, p_l,
 418                    sizeof(full_name->long_name) - (p_l - full_name->long_name),
 419                    p_s, DRIVE_GetFlags( dir->drive ) ))
 420         return FALSE;
 421     strcpy( full_name->long_name, dir->long_name );
 422     p_l[-1] = '/';
 423     strcpy( full_name->short_name, dir->short_name );
 424     p_s[-1] = '\\';
 425     return TRUE;
 426 }
 427
 428
 429 /***********************************************************************
 430  *           DIR_TryEnvironmentPath
 431  *
 432  * Helper function for DIR_SearchPath.
 433  */
 434 static BOOL DIR_TryEnvironmentPath( LPCSTR name, DOS_FULL_NAME *full_name )
 435 {
 436     LPSTR path, next, buffer;
 437     BOOL ret = FALSE;
 438     INT len = strlen(name);
 439     DWORD size = GetEnvironmentVariableA( "PATH", NULL, 0 );
 440
 441     if (!size) return FALSE;
 442     if (!(path = HeapAlloc( GetProcessHeap(), 0, size ))) return FALSE;
 443     if (!GetEnvironmentVariableA( "PATH", path, size )) goto done;
 444     next = path;
 445     while (!ret && next)
 446     {
 447         LPSTR cur = next;
 448         while (*cur == ';') cur++;
 449         if (!*cur) break;
 450         next = strchr( cur, ';' );
 451         if (next) *next++ = '\0';
 452         if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(cur) + len + 2)))
 453             goto done;
 454         strcpy( buffer, cur );
 455         strcat( buffer, "\\" );
 456         strcat( buffer, name );
 457         ret = DOSFS_GetFullName( buffer, TRUE, full_name );
 458         HeapFree( GetProcessHeap(), 0, buffer );
 459     }
 460
 461 done:
 462     HeapFree( GetProcessHeap(), 0, path );
 463     return ret;
 464 }
 465
 466
 467 /***********************************************************************
 468  *           DIR_TryModulePath
 469  *
 470  * Helper function for DIR_SearchPath.
 471  */
 472 static BOOL DIR_TryModulePath( LPCSTR name, DOS_FULL_NAME *full_name )
 473 {
 474     PDB *pdb = PROCESS_Current();
 475
 476     /* FIXME: for now, GetModuleFileName32A can't return more */
 477     /* than OFS_MAXPATHNAME. This may change with Win32. */
 478
 479     char buffer[OFS_MAXPATHNAME];
 480     LPSTR p;
 481
 482     if (pdb->flags & PDB32_WIN16_PROC) {
 483         if (!GetCurrentTask()) return FALSE;
 484         if (!GetModuleFileName16( GetCurrentTask(), buffer, sizeof(buffer) ))
 485                 buffer[0]='\0';
 486     } else {
 487         if (!GetModuleFileNameA( 0, buffer, sizeof(buffer) ))
 488                 buffer[0]='\0';
 489     }
 490     if (!(p = strrchr( buffer, '\\' ))) return FALSE;
 491     if (sizeof(buffer) - (++p - buffer) <= strlen(name)) return FALSE;
 492     strcpy( p, name );
 493     return DOSFS_GetFullName( buffer, TRUE, full_name );
 494 }
 495
 496
 497 /***********************************************************************
 498  *           DIR_SearchPath
 499  *
 500  * Implementation of SearchPath32A. 'win32' specifies whether the search
 501  * order is Win16 (module path last) or Win32 (module path first).
 502  *
 503  * FIXME: should return long path names.
 504  */
 505 DWORD DIR_SearchPath( LPCSTR path, LPCSTR name, LPCSTR ext,
 506                       DOS_FULL_NAME *full_name, BOOL win32 )
 507 {
 508     DWORD len;
 509     LPCSTR p;
 510     LPSTR tmp = NULL;
 511     BOOL ret = TRUE;
 512
 513     /* First check the supplied parameters */
 514
 515     p = strrchr( name, '.' );
 516     if (p && !strchr( p, '/' ) && !strchr( p, '\\' ))
 517         ext = NULL;  /* Ignore the specified extension */
 518     if ((*name && (name[1] == ':')) ||
 519         strchr( name, '/' ) || strchr( name, '\\' ))
 520         path = NULL;  /* Ignore path if name already contains a path */
 521     if (path && !*path) path = NULL;  /* Ignore empty path */
 522
 523     len = strlen(name);
 524     if (ext) len += strlen(ext);
 525     if (path) len += strlen(path) + 1;
 526
 527     /* Allocate a buffer for the file name and extension */
 528
 529     if (path || ext)
 530     {
 531         if (!(tmp = HeapAlloc( GetProcessHeap(), 0, len + 1 )))
 532         {
 533             SetLastError( ERROR_OUTOFMEMORY );
 534             return 0;
 535         }
 536         if (path)
 537         {
 538             strcpy( tmp, path );
 539             strcat( tmp, "\\" );
 540             strcat( tmp, name );
 541         }
 542         else strcpy( tmp, name );
 543         if (ext) strcat( tmp, ext );
 544         name = tmp;
 545     }
 546
 547     /* If we have an explicit path, everything's easy */
 548
 549     if (path || (*name && (name[1] == ':')) ||
 550         strchr( name, '/' ) || strchr( name, '\\' ))
 551     {
 552         ret = DOSFS_GetFullName( name, TRUE, full_name );
 553         goto done;
 554     }
 555
 556     /* Try the path of the current executable (for Win32 search order) */
 557
 558     if (win32 && DIR_TryModulePath( name, full_name )) goto done;
 559
 560     /* Try the current directory */
 561
 562     if (DOSFS_GetFullName( name, TRUE, full_name )) goto done;
 563
 564     /* Try the Windows directory */
 565
 566     if (DIR_TryPath( &DIR_Windows, name, full_name ))
 567         goto done;
 568
 569     /* Try the Windows system directory */
 570
 571     if (DIR_TryPath( &DIR_System, name, full_name ))
 572         goto done;
 573
 574     /* Try the path of the current executable (for Win16 search order) */
 575
 576     if (!win32 && DIR_TryModulePath( name, full_name )) goto done;
 577
 578     /* Try all directories in path */
 579
 580     ret = DIR_TryEnvironmentPath( name, full_name );
 581
 582 done:
 583     if (tmp) HeapFree( GetProcessHeap(), 0, tmp );
 584     return ret;
 585 }
 586
 587
 588 /***********************************************************************
 589  * SearchPath32A [KERNEL32.447]
 590  *
 591  * Searches for a specified file in the search path.
 592  *
 593  * PARAMS
 594  *    path      [I] Path to search
 595  *    name      [I] Filename to search for.
 596  *    ext       [I] File extension to append to file name. The first
 597  *                  character must be a period. This parameter is
 598  *                  specified only if the filename given does not
 599  *                  contain an extension.
 600  *    buflen    [I] size of buffer, in characters
 601  *    buffer    [O] buffer for found filename
 602  *    lastpart  [O] address of pointer to last used character in
 603  *                  buffer (the final '\')
 604  *
 605  * RETURNS
 606  *    Success: length of string copied into buffer, not including
 607  *             terminating null character. If the filename found is
 608  *             longer than the length of the buffer, the length of the
 609  *             filename is returned.
 610  *    Failure: Zero
 611  *
 612  * NOTES
 613  *    Should call SetLastError(but currently doesn't).
 614  */
 615 DWORD WINAPI SearchPathA( LPCSTR path, LPCSTR name, LPCSTR ext, DWORD buflen,
 616                             LPSTR buffer, LPSTR *lastpart )
 617 {
 618     LPSTR p, res;
 619     DOS_FULL_NAME full_name;
 620
 621     if (!DIR_SearchPath( path, name, ext, &full_name, TRUE )) return 0;
 622     lstrcpynA( buffer, full_name.short_name, buflen );
 623     res = full_name.long_name +
 624               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 625     while (*res == '/') res++;
 626     if (buflen)
 627     {
 628         if (buflen > 3) lstrcpynA( buffer + 3, res, buflen - 3 );
 629         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 630         if (lastpart) *lastpart = strrchr( buffer, '\\' ) + 1;
 631     }
 632     TRACE(dosfs, "Returning %d\n", (*res ? strlen(res) + 2 : 3));
 633     return *res ? strlen(res) + 2 : 3;
 634 }
 635
 636
 637 /***********************************************************************
 638  *           SearchPath32W   (KERNEL32.448)
 639  */
 640 DWORD WINAPI SearchPathW( LPCWSTR path, LPCWSTR name, LPCWSTR ext,
 641                             DWORD buflen, LPWSTR buffer, LPWSTR *lastpart )
 642 {
 643     LPWSTR p;
 644     LPSTR res;
 645     DOS_FULL_NAME full_name;
 646
 647     LPSTR pathA = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 648     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
 649     LPSTR extA  = HEAP_strdupWtoA( GetProcessHeap(), 0, ext );
 650     DWORD ret = DIR_SearchPath( pathA, nameA, extA, &full_name, TRUE );
 651     HeapFree( GetProcessHeap(), 0, extA );
 652     HeapFree( GetProcessHeap(), 0, nameA );
 653     HeapFree( GetProcessHeap(), 0, pathA );
 654     if (!ret) return 0;
 655
 656     lstrcpynAtoW( buffer, full_name.short_name, buflen );
 657     res = full_name.long_name +
 658               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 659     while (*res == '/') res++;
 660     if (buflen)
 661     {
 662         if (buflen > 3) lstrcpynAtoW( buffer + 3, res, buflen - 3 );
 663         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 664         if (lastpart)
 665         {
 666             for (p = *lastpart = buffer; *p; p++)
 667                 if (*p == '\\') *lastpart = p + 1;
 668         }
 669     }
 670     return *res ? strlen(res) + 2 : 3;
 671 }
 672
 673